Webalizer is a more advanced stats program which produces a nice variety of charts and graphs about who has visited your site.

This may be the most popular stats engine available today. 

These reports include: 

• monthly, daily and hourly breakdowns of site hits, 

• web page views, 

• visitor sessions and 

• amounts of data transfer (or bandwidth usage). 

Other reports include: 

• most frequently accessed files, 

• site entry and exit pages,  

• hostnames of your visitors, 

• breakdown of site access by country,

• detailed referrer information including the sites sending you your visitors,

• full search strings being used to find your site through search engines.